OK, I'm just going to say it. Sparkling wine and chocolate do not pair well! There, I said it. No matter how you try they do not work well together on the palate.
However, chocolate with red wine or ports pair well together on the palate. Wines that have tasting descriptions of berries or chocolate will go nicely with chocolate. Look for that in Merlot and Cabernet for the most part. A nice port made from Portuguese varieties such as Trousseau, Touriga Nacional, Tinta Roriz and Souzao would be a treat with chocolate. Port flowing over a nice piece of dark chocolate in your mouth is heaven.
Well, if you believe there is a good pairing of sparkling wine and chocolate, please leave a comment and let us know what it is. I have an open mind.
Happy Valentines Day!